GradePack

    • Home
    • Blog
Skip to content
bg
bg
bg
bg

GradePack

When using multi-leaf collimation, which concerns need to be…

When using multi-leaf collimation, which concerns need to be evaluated?

Read Details

Simplify 5×4 * x.

Simplify 5×4 * x.

Read Details

In treatments using kilovoltage equipment, filters are used…

In treatments using kilovoltage equipment, filters are used to do which of the following?

Read Details

Orthovoltage x-ray machines have energies in the range of wh…

Orthovoltage x-ray machines have energies in the range of which of the following?

Read Details

At what rate does the cobalt 60 source decay?

At what rate does the cobalt 60 source decay?

Read Details

Calculate the wedge factor is if the dose with the wedge is…

Calculate the wedge factor is if the dose with the wedge is 85 cGy and the dose without the wedge is 110 cGy.

Read Details

On most linear accelerators, the isocenter distance is at __…

On most linear accelerators, the isocenter distance is at ___; and on a cobalt-60 machine, the distance is at ___.

Read Details

On a modern-day linear accelerator, how many jaws does a col…

On a modern-day linear accelerator, how many jaws does a collimator have?

Read Details

What is the Mayneord Factor for a patient who was originally…

What is the Mayneord Factor for a patient who was originally treated at 100 cm SSD to a depth of 5 cm with a 10MV photon beam, but now needs to be treated at 110 SSD?

Read Details

A patient is to be treated using a three-field prone pelvis…

A patient is to be treated using a three-field prone pelvis SAD plan.  The lateral fields use wedges.  How many MUs will each lateral field receive if the prescribed dose is 180 cGy per fraction, the fields are equally weighted, have a wedge factor of 0.74, output of 0.90 cGy/MU, and TMR of 0.812?

Read Details

Posts pagination

Newer posts 1 … 28,300 28,301 28,302 28,303 28,304 … 100,736 Older posts

GradePack

  • Privacy Policy
  • Terms of Service
Top